US4490815A - Actuator for use in a pickup device for a video disk player - Google Patents

Actuator for use in a pickup device for a video disk player Download PDF

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Publication number
US4490815A
US4490815A US06/316,642 US31664281A US4490815A US 4490815 A US4490815 A US 4490815A US 31664281 A US31664281 A US 31664281A US 4490815 A US4490815 A US 4490815A
Authority
US
United States
Prior art keywords
actuator
yoke
permanent magnet
projections
resilient member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US06/316,642
Other languages
English (en)
Inventor
Teruo Umehara
Norio Matsumoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Proterial Ltd
Original Assignee
Hitachi Metals Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP15532080A external-priority patent/JPS5780255A/ja
Priority claimed from JP5563681U external-priority patent/JPS6145745Y2/ja
Application filed by Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Assigned to HITACHI METALS, LTD., A CORP. OF JAPAN reassignment HITACHI METALS, LTD., A CORP. OF JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MATSUMOTO, NORIO, UMEHARA, TERUO
Application granted granted Critical
Publication of US4490815A publication Critical patent/US4490815A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
US06/316,642 1980-11-05 1981-10-30 Actuator for use in a pickup device for a video disk player Expired - Fee Related US4490815A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP55-155320 1980-11-05
JP15532080A JPS5780255A (en) 1980-11-05 1980-11-05 Actuator
JP56-55636[U] 1981-04-17
JP5563681U JPS6145745Y2 (de) 1981-04-17 1981-04-17

Publications (1)

Publication Number Publication Date
US4490815A true US4490815A (en) 1984-12-25

Family

ID=26396530

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/316,642 Expired - Fee Related US4490815A (en) 1980-11-05 1981-10-30 Actuator for use in a pickup device for a video disk player

Country Status (3)

Country Link
US (1) US4490815A (de)
DE (1) DE3144002C2 (de)
GB (1) GB2089132B (de)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4717900A (en) * 1984-03-30 1988-01-05 Aisin Seiki Kabushiki Kaisha Low profile electromagnetic linear motion device
US5765671A (en) * 1994-09-07 1998-06-16 Seiko Epson Corporation Electric power unit and power transmitting unit for electric vehicles
EP1158547A2 (de) * 2000-05-23 2001-11-28 Minebea Co., Ltd. Elektromagnetischer Aktuator und zusammengesetzte elektromagnetische Betätigungsvorrichtung
US20060023366A1 (en) * 2004-07-28 2006-02-02 Tdk Corporation Magnetic recording apparatus
US7102982B1 (en) * 1997-05-30 2006-09-05 International Business Machines Corporation Storage apparatus and method utilizing a charge storage layer having discrete conductive charge-storing elements
US20070188027A1 (en) * 2006-02-13 2007-08-16 Asmo Co., Ltd. Motor
US20110210690A1 (en) * 2010-02-26 2011-09-01 Walter Vogel Linear motor with permanent-magnetic self-holding
CN105811725A (zh) * 2016-03-11 2016-07-27 歌尔声学股份有限公司 一种线性振动马达
CN107925333A (zh) * 2015-09-08 2018-04-17 苹果公司 用于在电子设备中使用的线性致动器
WO2018149694A1 (de) 2017-02-15 2018-08-23 Kolektor Group D.O.O. Elektromagnetischer linearaktuator
US10353467B2 (en) 2015-03-06 2019-07-16 Apple Inc. Calibration of haptic devices
US10459521B2 (en) 2013-10-22 2019-10-29 Apple Inc. Touch surface for simulating materials
US10475300B2 (en) 2009-09-30 2019-11-12 Apple Inc. Self adapting haptic device
US10481691B2 (en) 2015-04-17 2019-11-19 Apple Inc. Contracting and elongating materials for providing input and output for an electronic device
US10490035B2 (en) 2014-09-02 2019-11-26 Apple Inc. Haptic notifications
US10545604B2 (en) 2014-04-21 2020-01-28 Apple Inc. Apportionment of forces for multi-touch input devices of electronic devices
US10599223B1 (en) 2018-09-28 2020-03-24 Apple Inc. Button providing force sensing and/or haptic output
US10609677B2 (en) 2016-03-04 2020-03-31 Apple Inc. Situationally-aware alerts
US10622538B2 (en) 2017-07-18 2020-04-14 Apple Inc. Techniques for providing a haptic output and sensing a haptic input using a piezoelectric body
US10651716B2 (en) 2013-09-30 2020-05-12 Apple Inc. Magnetic actuators for haptic response
US10691211B2 (en) 2018-09-28 2020-06-23 Apple Inc. Button providing force sensing and/or haptic output
US10809805B2 (en) 2016-03-31 2020-10-20 Apple Inc. Dampening mechanical modes of a haptic actuator using a delay
US11075028B2 (en) * 2018-08-14 2021-07-27 Korea Institute Of Science And Technology Impact actuator with 2-degree of freedom and impact controlling method
US11380470B2 (en) 2019-09-24 2022-07-05 Apple Inc. Methods to control force in reluctance actuators based on flux related parameters
US11410809B2 (en) * 2017-12-28 2022-08-09 Hyosung Heavy Industries Corporation High-speed solenoid
US11809631B2 (en) 2021-09-21 2023-11-07 Apple Inc. Reluctance haptic engine for an electronic device
US11977683B2 (en) 2021-03-12 2024-05-07 Apple Inc. Modular systems configured to provide localized haptic feedback using inertial actuators

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125222B (en) * 1982-07-24 1985-12-04 Edward Frederick Birch Electro-magnetic actuator
GB2125223A (en) * 1982-08-05 1984-02-29 Yeh Chun Tsai Electromagnetic driving device
DE3307070C2 (de) * 1983-03-01 1985-11-28 FEV Forschungsgesellschaft für Energietechnik und Verbrennungsmotoren mbH, 5100 Aachen Stelleinrichtung für ein zwischen zwei Endstellungen verstellbares Schaltelement
DE3626254A1 (de) * 1986-08-02 1988-02-11 Bbc Brown Boveri & Cie Elektromagnetisches stellelement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435817A (en) * 1944-09-30 1948-02-10 Gen Electric Electromagnet with plunger
GB958501A (en) * 1959-07-03 1964-05-21 Philips Electrical Ind Ltd Improvements in electromagnetic devices in which a body is moved between two stable end positions
US3135880A (en) * 1958-11-10 1964-06-02 Tronics Corp Linear motion electromagnetic machines
US3183410A (en) * 1960-12-30 1965-05-11 Ibm Magnetic multipositioning actuators
US3202886A (en) * 1962-01-11 1965-08-24 Bulova Watch Co Inc Bistable solenoid
US3504315A (en) * 1967-12-05 1970-03-31 Plessey Co Ltd Electrical solenoid devices
US3593241A (en) * 1969-07-18 1971-07-13 Alfred J Ludwig Solenoid valve having a slotted flux sleeve for nesting the winding leads

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170783A (en) * 1977-03-14 1979-10-09 Victor Company Of Japan, Ltd. Signal pickup device for reproducing an information signal recorded on a track of a rotary recording medium

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435817A (en) * 1944-09-30 1948-02-10 Gen Electric Electromagnet with plunger
US3135880A (en) * 1958-11-10 1964-06-02 Tronics Corp Linear motion electromagnetic machines
GB958501A (en) * 1959-07-03 1964-05-21 Philips Electrical Ind Ltd Improvements in electromagnetic devices in which a body is moved between two stable end positions
US3183410A (en) * 1960-12-30 1965-05-11 Ibm Magnetic multipositioning actuators
US3202886A (en) * 1962-01-11 1965-08-24 Bulova Watch Co Inc Bistable solenoid
US3504315A (en) * 1967-12-05 1970-03-31 Plessey Co Ltd Electrical solenoid devices
US3593241A (en) * 1969-07-18 1971-07-13 Alfred J Ludwig Solenoid valve having a slotted flux sleeve for nesting the winding leads

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4717900A (en) * 1984-03-30 1988-01-05 Aisin Seiki Kabushiki Kaisha Low profile electromagnetic linear motion device
US5765671A (en) * 1994-09-07 1998-06-16 Seiko Epson Corporation Electric power unit and power transmitting unit for electric vehicles
US5853058A (en) * 1994-09-07 1998-12-29 Seiko Epson Corporation Electric power unit and power transmitting unit for electric vehicles
US7102982B1 (en) * 1997-05-30 2006-09-05 International Business Machines Corporation Storage apparatus and method utilizing a charge storage layer having discrete conductive charge-storing elements
EP1158547A2 (de) * 2000-05-23 2001-11-28 Minebea Co., Ltd. Elektromagnetischer Aktuator und zusammengesetzte elektromagnetische Betätigungsvorrichtung
EP1158547A3 (de) * 2000-05-23 2002-06-12 Minebea Co., Ltd. Elektromagnetischer Aktuator und zusammengesetzte elektromagnetische Betätigungsvorrichtung
US6960847B2 (en) 2000-05-23 2005-11-01 Minebea Co., Ltd. Electromagnetic actuator and composite electromagnetic actuator apparatus
US20060023366A1 (en) * 2004-07-28 2006-02-02 Tdk Corporation Magnetic recording apparatus
US7474509B2 (en) * 2004-07-28 2009-01-06 Tdk Corporation Magnetic recording apparatus with head arm holding part
US20070188027A1 (en) * 2006-02-13 2007-08-16 Asmo Co., Ltd. Motor
US11043088B2 (en) 2009-09-30 2021-06-22 Apple Inc. Self adapting haptic device
US10475300B2 (en) 2009-09-30 2019-11-12 Apple Inc. Self adapting haptic device
US11605273B2 (en) 2009-09-30 2023-03-14 Apple Inc. Self-adapting electronic device
US20110210690A1 (en) * 2010-02-26 2011-09-01 Walter Vogel Linear motor with permanent-magnetic self-holding
US8643228B2 (en) * 2010-02-26 2014-02-04 Karl Storz Gmbh & Co. Kg Linear motor with permanent-magnetic self-holding
US10651716B2 (en) 2013-09-30 2020-05-12 Apple Inc. Magnetic actuators for haptic response
US10459521B2 (en) 2013-10-22 2019-10-29 Apple Inc. Touch surface for simulating materials
US10545604B2 (en) 2014-04-21 2020-01-28 Apple Inc. Apportionment of forces for multi-touch input devices of electronic devices
US10490035B2 (en) 2014-09-02 2019-11-26 Apple Inc. Haptic notifications
US10353467B2 (en) 2015-03-06 2019-07-16 Apple Inc. Calibration of haptic devices
US10481691B2 (en) 2015-04-17 2019-11-19 Apple Inc. Contracting and elongating materials for providing input and output for an electronic device
US11402911B2 (en) 2015-04-17 2022-08-02 Apple Inc. Contracting and elongating materials for providing input and output for an electronic device
CN107925333B (zh) * 2015-09-08 2020-10-23 苹果公司 用于在电子设备中使用的线性致动器
CN107925333A (zh) * 2015-09-08 2018-04-17 苹果公司 用于在电子设备中使用的线性致动器
US10566888B2 (en) 2015-09-08 2020-02-18 Apple Inc. Linear actuators for use in electronic devices
US10609677B2 (en) 2016-03-04 2020-03-31 Apple Inc. Situationally-aware alerts
CN105811725B (zh) * 2016-03-11 2018-09-07 歌尔股份有限公司 一种线性振动马达
CN105811725A (zh) * 2016-03-11 2016-07-27 歌尔声学股份有限公司 一种线性振动马达
US10468957B2 (en) 2016-03-11 2019-11-05 Goertek Inc. Linear vibration motor
US10809805B2 (en) 2016-03-31 2020-10-20 Apple Inc. Dampening mechanical modes of a haptic actuator using a delay
US11094442B2 (en) 2017-02-15 2021-08-17 Kolektor Group D.O.O. Electromagnetic linear actuator
WO2018149694A1 (de) 2017-02-15 2018-08-23 Kolektor Group D.O.O. Elektromagnetischer linearaktuator
DE102017103090B4 (de) 2017-02-15 2020-06-04 Kolektor Group D.O.O. Elektromagnetischer Linearaktuator
US10622538B2 (en) 2017-07-18 2020-04-14 Apple Inc. Techniques for providing a haptic output and sensing a haptic input using a piezoelectric body
US11410809B2 (en) * 2017-12-28 2022-08-09 Hyosung Heavy Industries Corporation High-speed solenoid
US11075028B2 (en) * 2018-08-14 2021-07-27 Korea Institute Of Science And Technology Impact actuator with 2-degree of freedom and impact controlling method
US10691211B2 (en) 2018-09-28 2020-06-23 Apple Inc. Button providing force sensing and/or haptic output
US10599223B1 (en) 2018-09-28 2020-03-24 Apple Inc. Button providing force sensing and/or haptic output
US11763971B2 (en) 2019-09-24 2023-09-19 Apple Inc. Methods to control force in reluctance actuators based on flux related parameters
US11380470B2 (en) 2019-09-24 2022-07-05 Apple Inc. Methods to control force in reluctance actuators based on flux related parameters
US11977683B2 (en) 2021-03-12 2024-05-07 Apple Inc. Modular systems configured to provide localized haptic feedback using inertial actuators
US11809631B2 (en) 2021-09-21 2023-11-07 Apple Inc. Reluctance haptic engine for an electronic device

Also Published As

Publication number Publication date
GB2089132B (en) 1984-07-18
DE3144002C2 (de) 1983-06-16
DE3144002A1 (de) 1982-06-09
GB2089132A (en) 1982-06-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HITACHI METALS, LTD., 1-2, 2-CHOME, MARUNOUCHI, CH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:UMEHARA, TERUO;MATSUMOTO, NORIO;REEL/FRAME:003952/0091

Effective date: 19811020

Owner name: HITACHI METALS, LTD., A CORP. OF JAPAN, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:UMEHARA, TERUO;MATSUMOTO, NORIO;REEL/FRAME:003952/0091

Effective date: 19811020

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Year of fee payment: 4

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Year of fee payment: 8

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Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

REMI Maintenance fee reminder mailed
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FP Lapsed due to failure to pay maintenance fee

Effective date: 19961225

STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362